Language and metaphysics: the case of theoretical identities

Kripke holds the thesis that identity statements containing natural kind terms are if true, necessarily true; these statements can be denominated theoretical identities. Kripke alleges that the necessity of theoretical identities grounds on the linguistic feature that natural kind terms are rigid designators. Nevertheless, I argue that the conception of natural kind terms as rigid designators, in one of their most natural views, hinders the establishment of the truth of theoretical identities and thus of their necessity. However, in Kripke’s works another proposal, not linguistic but metaphysical, is found to justify the presumed necessity of theoretical identities; it grounds on essentialism concerning natural kinds. In this regard, I question some of Kripke’s main claims, focusing on one of the main examples of theoretical identities put forward by Kripke, i.e., “Water is H\(_2\)O”. I challenge his a priori claims concerning what should be the essence of a natural kind like water. Furthermore, I adduce that the character of that theoretical identity is not that claimed by Kripke, since in the term flanking the right side of the identity sign it has to be resorted to the notion of similarity or it should have the form of a disjunction of a cluster of substances.

     

Externalizing Behavior in at-Risk Preadolescents: Relationships among Effortful Control,Affective Experiences,and Autonomic Psychophysiology

This study examined the impact of autonomic self-regulation, affective experience, and effortful control on externalizing behavior in preadolescents (n = 360) deemed at-risk for aggression. Autonomic self-regulation was assessed using measurements of respiratory sinus arrhythmia and skin conductance levels as markers for parasympathetic and sympathetic functioning. Affective experience and effortful control constructs were derived using scales from the Early Adolescent Temperament Questionnaire. Structural equation modeling indicated that sympathetic and parasympathetic functioning predicted externalizing behavior even when accounting for the influence of temperament traits. These significant associations were small in magnitude. As expected, higher parasympathetic and lower sympathetic reactivity predicted greater externalizing behavior. Effortful control and affective experience also independently predicted problem behavior when accounting for autonomic functioning and each other’s influence as evidenced by small to medium significant associations. Lower levels of these constructs predicted higher problem behavior. Implications for the prevention and treatment of externalizing behavior are discussed.     

Psycho-ophthalmology: Contributions of Health psychology to the assessment and treatment of glaucoma

Background: Asymptomatic in its early stages, glaucoma is the second leading cause of blindness worldwide. While psychosocial factors are taken into consideration for a host of diseases such as cancer, heart disease and autoimmune conditions, to date, psychological issues have been ignored in the clinical management of glaucoma.

Objective: This work reviews the most relevant contributions from a health psychology perspective for the assessment and treatment of glaucoma, which is emerging in the field of psycho-ophthalmology.

Method: To provide scientific evidence regarding contributions of psychology to the comprehension of glaucoma, a bibliographic review of three databases (Psicodoc, PsycInfo and Medline) was conducted, spanning the period between 1940 and 2016.

Results: This review yielded a total of 66 studies published in the period analysed and identified three areas where health psychology has made substantive contributions to glaucoma screening, monitoring and treatment: the emotional impact on patients suffering from glaucoma, the adherence to treatment and the effects of stress on intraocular pressure.

Conclusions: A health psychology approach for research and therapy of glaucoma must focus on the management of the negative affect associated with the diagnosis, the optimisation of treatment adherence and the stress management of the intraocular pressure measurements.     

Electrophysiological differences in the processing of affective information in words and pictures

It is generally assumed that affective picture viewing is related to higher levels of physiological arousal than is the reading of emotional words. However, this assertion is based mainly on studies in which the processing of either words or pictures has been investigated under heterogenic conditions. Positive, negative, relaxing, neutral, and background (stimulus fragments) words and pictures were presented to subjects in two experiments under equivalent experimental conditions. In Experiment 1, neutral words elicited an enhanced late positive component (LPC) that was associated with an increased difficulty in discriminating neutral from background stimuli. In Experiment 2, high-arousing pictures elicited an enhanced early negativity and LPC that were related to a facilitated processing for these stimuli. Thus, it seems that under some circumstances, the processing of affective information captures attention only with more biologically relevant stimuli. Also, these data might be better interpreted on the basis of those models that postulate a different access to affective information for words and pictures.     

Predictive Factors of Ethnic Prejudice Toward Immigrants in a Representative Subsample of Spanish Young People1

This research aimed to study those factors that predict different types of ethnic prejudice in a representative subsample of Spanish young people. The instrument we used was Pettigrew & Meertens' (1995 ) blatant/subtle prejudice scale. Results show that although there is a similar underlying pattern in both types of ethnic prejudice, subtle prejudice is based more on cultural differences, whereas blatant prejudice also stresses the racial, economic, and labor effects of immigration. Moreover, blatant prejudice is also influenced by the formal level of education and political position. The results are interpreted within the Spanish context; and the implications for identity formation and maintenance, and practical programs directed toward ethnic prejudice awareness are discussed.     

Overlap and correlates of different types of aggression among adults: Results from a cross‐sectional survey in Bogotá, Colombia

Our objective is to establish the prevalence and overlap among different forms of violence and the importance of known correlates of aggression in Bogotá, Colombia. Our method is a cross‐sectional household survey of violence amongst a random sample (n=3007) of the general population between the ages of 15 and 60. In this population the more severe forms of aggression tend to appear concurrently with the less severe forms. Multivariate analyses of the data show that a family history of crime, physical aggression among family members, lack of clarity of parental norms, beliefs justifying the use of violence, and alcohol consumption are the main correlates of verbal and physical aggression independent of age, gender and social class. Although the findings are limited by the cross‐sectional design, exclusion of the institutionalized population, and reliance on retrospective self‐reports, they provide population‐based estimates of different forms of aggression and support for known correlates of aggression in a Latin American context. Aggr. Behav. 29:191–201, 2003. © 2003 Wiley‐Liss, Inc.     

Does g variance change in adulthood? Testing the age de-differentiation hypothesis across sex

In the last decade, changes in the structure of intelligence across the life-span has become a central topic in the research on human intelligence. One of the main hypotheses that has arisen to account for such changes has been the age de-differentiation hypothesis [Balinsky, Genetic Psychology Monographs 23 1941, 191]. It predicts an increase in the importance of g, and a decrease in the number and importance of the lower-order abilities from early maturity to senescence. Despite of the research effort to test this hypothesis, no study has ever been conducted controlling by sex. For that purpose, males and females of the Spanish standardisation sample of the WAIS-III were analysed separately. Results show that the importance of g does not change with age irrespective of sex. Thus, the age de-differentiation hypothesis is rejected for both males and females. The indifferentiation hypothesis is supported as a more appropriate view of the changes in the structure of intelligence across adulthood.     

Influence of the penalty point system on driving behaviour: drivers' point of view

On July 1, 2006 a penalty point system was introduced in Spain. One year later, a reduction of 14.3% was observed in road traffic casualties, whilst the previous year that figure was 4.9%. A national telephone survey was conducted on a sample of 2.014 respondents to explore the drivers' point of view about the influence of the penalty point system on driving behaviour. Results point to a moderate behavioural change, mainly in relation to speeding and mobile phone misuse, this change being slightly more intense in drivers who were fined during the previous year. Awareness of road traffic accidents increased in around 40% of drivers. Lastly, mobility loss stands out as the most worrying and presumably most influential consequence of driving license loss.     

Cognitive plasticity in Alzheimer's disease patients receiving cognitive stimulation programs

The main purpose of this article is to examine whether cognitive plasticity increases after cognitive training in Alzheimer's disease patients. Twenty six patients participated in this study, all of them diagnosed with mild Alzheimer's disease, 17 of them received a cognitive training program during 6 months, and the other 9 were assigned to the control group. Participants were assigned to experimental or control conditions for clinical reasons. In order to assess cognitive plasticity, all patients were assessed before and after treatment with three subtests from the "Bateria de Evaluación de Potencial de Aprendizaje en Demencias" [Assessment Battery of Learning Potential in Dementia] (BEPAD). After treatment, Alzheimer's disease patients improved their performance in all the tasks assessing cognitive plasticity: viso-spatial memory, audio-verbal memory and verbal fluency. However, the cognitive plasticity scores of the patients in the control group decreased. In conclusion, this study showed that cognitive stimulation programs can improve cognitive functioning in mildly demented patients, and patients who do not receive any cognitive interventions may reduce their cognitive functioning.     

Creators' intentions bias judgments of function independently from causal inferences

Participants learned about novel artifacts that were created for function X, but later used for function Y. When asked to rate the extent to which X and Y were a given artifact's function, participants consistently rated X higher than Y. In Experiments 1 and 2, participants were also asked to rate artifacts' efficiency to perform X and Y. This allowed us to test if participants' preference for X was mediated by causal inferences. Experiment 1 showed that participants did not infer intentionally created artifacts performed X more efficiently than Y. Experiment 2 showed participants did not infer that only an efficient (but not an inefficient) artifact provided evidence of intentional creation. Causal inferences involving efficiency, did not account for participants' preferences. In Experiment 3, in contrast, when the creator changed her mind about an artifact's function (i.e., from X to Y), the preference for the original function tended to disappear. Creators' intentions were the basis for participants' preference. Results are discussed relative to essentialist theories.